Answered: A company markets exercise DVDs that…

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section1.CT: Chapter Test

Problem 8CT

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Question

A company markets exercise DVDs that sell for

$19.95,

including shipping and handling. The monthly fixed costs (advertising, rent, etc.) are

$19,530

and the variable costs (materials, shipping, etc.) are

$9.45

per DVD.

(A) Find the cost equation and the revenue equation.

(B) How many DVDs must be sold each month for the company to break even?

(C) Graph the cost and revenue equations in the same coordinate system and show the break-even point. Interpret the regions between the lines to the left and to the right of the break-even point.

System that uses coordinates to uniquely determine the position of points. The most common coordinate system is the Cartesian system, where points are given by distance along a horizontal x-axis and vertical y-axis from the origin. A polar coordinate system locates a point by its direction relative to a reference direction and its distance from a given point. In three dimensions, it leads to cylindrical and spherical coordinates.

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